| article html file updated | 8 February 2020 03:44 CET | Update | https://www.mdpi.com/1422-0067/18/4/848 |
| article html file updated | 24 September 2019 08:38 CEST | Update | - |
| article html file updated | 4 May 2019 01:56 CEST | Update | - |
| article html file updated | 2 May 2017 06:13 CEST | Update | - |
| article html file updated | 17 April 2017 12:12 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 12:11 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/848/xml |
| article pdf uploaded. | 17 April 2017 12:11 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/848/pdf |
